Shaker screen mechanism.



. G. C. BATTEN.

SHAKER SCREEN MECHANISM.

APPLICATION FILED SEPT.15, 1915 1,177,676. Patented Apr. 4, 1916 THE CULUMHIA PLANOGRAPH c0., WAsmNu'mN. D. c.

GIDEON C. BATTEN, OE CINCINNATI, OHIO.

SHAKER SCREEN MECHANISM.

Specification of Letters Patent.

Patented Apr. 4, 1916.

Application filed september 15,1915. Serial No. 50,896.

To all whom it may concern:

' Be it known that I, GIDEON C. BATTEN, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and-State of Ohio, have invented certain new and useful Improvements in Shaker Screen Mechanism, of which the following is a specification.

My invention relates to improvements in screening apparatus.

One of its objects is to provide an improved screen or riddle for the use of molders and the like.

Another object is to provide improved means to insure the breaking up and passage through the riddle of any lumps of clay or loam which may occur in or be added to the charge.

Another object is to provide a riddle having increased capacity and ableto retain pieces of metal while breaking up" and screening lumps of clay or loam.

Another object is to provide a riddle for molders purposes having increased wearing qualities. Y

My invention also comprises certain details of form combination and arrangement, all of which will be fully set forth in the description of the accompanying drawings in which:

Figure 1 is a perspective view of one type of power operated screen or shaker withmy improvements'attached thereto. Fig. 2 is a vertical sectional detail through the 'riddle. Fig. 3 is a perspective view of the screen detached. Fig. 4 is a perspective view of the charge vibrating and lump breaking member detached.

Screens or riddles as employed by molders w w 'to which is loosely pivctally attached one have several functions to perform; They are employed to separate stones, lumps, and

pieces of metal. from the sand or loam, to

mix different grades of sand together and to mix certain clays and loams with the sand, to secure the desired texture of material for molding purposes. The stones and pieces of metal tend to quickly wear out the perforated bcttom ofthe screen. The clays and loams usually consist largely of more or less dense, tenacious lumps of different sizes which resist passage through the screen whether in the dry or damp state. To reject these l p f ay together wi h. the. stones and pieces of metal would result in rejecting the most expensive and desirable of the substances entering into the composition of the moldingsand, and my improved apparatus is designed to separate the stones and pieces of metal, to avoid excessive wear on the screen and at the same time to break up the lumps of clay or loam so as to pass the substance thereof through the screen and intimately mix it with the sand.

The accompanying drawings represent the preferred embodiment of my invention as applied to one type of power driven riddles.

{is illustrated A represents a tripod upon which is mounted a pneumatic cylinder B y and its plunger C. Directly attached to, so

as to reciprocate with the plunger G is a .split ring or band D having a clamp bolt 2 to unite its ends.

E represents a metal band or frame hav- ,ing its lower edge 3 flanged inwardly, orif desired inwardly projecting lugs may be employed in place of a continuous flange. I

preferably but not necessarily employ a perforatjed sheet metal screen F instead of a v woven wire screen and this screen F rests at its periphery upon the flange 3. The band E is, firmly but detachably clamped in place withinthe split ring D. This enables either the band E or screen F to be readily discarded and replaced when worn. however, thesplit ring D maybe omitted and the band E attached directly to the plunger C. The band D is 'pivotally sup- -ported relative to the tripod by means of links v Above the screen F and normally resting thereon is a perforated metal plate H, which has an upwardly projecting stem or post 6 screen comprising the parts E and F is re ciprocated rapidly backward and forward by the plungerC, the plate H being attached by the link 7 and bar 8 to the stationary tripod and being of "less diameter than the If desired,

screen the plate H when properly proportioned and of approximately the proper weight will work up into and partially ride upon the charge assuming a horizontal position or one slightly inclined to the horizontal and will travel backward and forward through the upper strata of the charge catching the lumps at its edges and through its perforations cutting up and disintegrating any lumps of clay or loam, and as the charge passes out through the bottom of the screen the plate H will follow the charge downwardly to keep in contact with the lumps, and will rise again when fresh material is fed in. In practice the plate H is of sheet or cast metal with perforations of sufficient diameter to receive and pass the unbroken lumps, and from one fourth to one half of an inch in thickness, depending upon the weight desired therein. The perforations of the screen F are preferably tapered from the inside outwardly or downwardly so that any particle having once passed the narrow neck of the perforation may readily escape and not clog the screen. Stones or pieces of metal will readily slide over the comparatively smooth inner face of the screen F without material injury thereto, and in the absence of a charge the plate H will ride upon the inner face of the screen with but little wear. The action of the plate H in addition to disintegrating the lumps, materially assists in rapidly passing the charge through the screen and keeping it uniformly spread over the face thereof. The plate H should be properly proportioned as to weight; it should be heavy enough to disintegrate the lumps and cut its way through the charge, and should not be so heavy as to injure the parts E and F, or to fail to ride up into the charge.

My improved apparatus may be operated by hand or employed in connection with any of the various riddle power operating devices. V r

The mechanism herein illustrated and clescribed is capable of considerable modification without departing from the principle of my invention.

Having described my invention, what I claim is:'

1. A shaker mechanism comprising a receptacle'for the material to be screened having a perforated bottom and supported in position to have a shaking movement imparted thereto to work the finer portion of the charge through the perforations of its ing a perforated bottom and supported in bottom, anda disintegrator member located loosely in said receptacle and separatelycontrolled to cause said dislntegrator member to strike the walls of said receptacle and move in different directions within and rela- I tive to said receptacle when a shaking move ment is imparted to said receptacle.

2. A shaker mechanism comprising a re-- ceptacle for the material to be screened having a perforated sheet metal bottom and supported in position to be'reciprocatedto work the finer portion of the charge through the perforations of its bottom, a disinte-i' grator' member of less diameter than said receptacle located loosely in said receptacle and jointedly attached to a stationary support outside of said receptacle to cause said disintegrator member to strike the walls of said receptacle and to rebound therefrom and move in different directions within and relative to said receptacle when said receptacle is reciprocated. 3. A shaker mechanism comprising a re-. ceptacle for the material to be screened hav position to be reciprocated to work the finer portion of its charge through the perforations of the bottom, a disintegrator member of less diameter than said receptacle located loosely in said receptacle and adapted to ride in and cut through the charge in said 'to cross-cutthe charge in different directions.

rece tacle. said dis ntegrator member by 4. A shaker mechanism comprising a re- H 7 bottom of said receptacle in different direc; tions. when said receptacle is reciprocated.

5. A shaker mechanism comprising areceptacle for the material to bescreened hav-V mg a perforated sheet metal bottom and sup orted in position to be reciprocated to W work the finer port on of the charge through the perforati ns of its bottom, means to recipr cate said receptacle; a disintegrator, member of less diameter than the receptacle looselv mounted in said rece tacle and separatelv c ntrolled to cause it bv striking the walls of said receptacle to ride in and crossrocated.

cut the charge when said receptaeleis recip: 712,5

6. A shaker mechanism comprisinga" c lindrical receptacle for the material to be screened having a perforated bottom and 7 supported in position to have a shaking movement imparted thereto to Work the finer charge due to the shaking movement of said portion of the charge through the perforareceptacle. 10 tions of its bottom, and a disintegrator of In testimony whereof I have affixed my less diameter than the receptacle movably signature in the presence of two Witnesses.

mounted in said receptacle and separately GIDEON C. BATTEN. controlled to cause it to strike the Walls of Witnesses:

said receptacle at different points and to O. WV. MILES,

move in different directions through the W. THORNTON BOGERT.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

lforrection in Letters Patent No.1,177,676.

It is hereby certified that in Letters Patent 0. 1,177,676, granted April 4, 1916, upon the application of Gideon C. Batten, of Cincinnati, Ohio, for an improvement in "Shaker Screen Mechanism, an error appears in the printed specification requiring correction as follows: Page 2, line 1, after the word vertically insert the word and; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office. Q

Signed and sealed this 30th day 5i May, A. 11,1916.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents 

